Patents by Inventor Viktor BOBEK

Viktor BOBEK has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device for determining a position of a rotor of an electric motor
    Patent number: 9628005
    Abstract: A device for determining a rotor position in a polyphase electric motor has a power control unit for applying drive voltages according to a pulse width modulation scheme so as to synchronously drive the motor. A measurement unit is arranged for measuring a voltage value on a respective phase by determining a zero-crossing interval where the phase current is around zero, disconnecting the phase from the respective drive voltage during the zero-crossing interval, and measuring the voltage value when the drive voltage of a first other phase is the supply voltage and the drive voltage of a second other phase is the zero voltage. A position unit is arranged for determining the rotor position based on the voltage value.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: April 18, 2017
    Assignee: NXP USA, INC.
    Inventors: Ivan Lovas, Viktor Bobek
  • DEVICE FOR DETERMINING A POSITION OF A ROTOR OF AN ELECTRIC MOTOR
    Publication number: 20160056741
    Abstract: A device for determining a rotor position in a polyphase electric motor has a power control unit for applying drive voltages according to a pulse width modulation scheme so as to synchronously drive the motor. A measurement unit is arranged for measuring a voltage value on a respective phase by determining a zero-crossing interval where the phase current is around zero, disconnecting the phase from the respective drive voltage during the zero-crossing interval, and measuring the voltage value when the drive voltage of a first other phase is the supply voltage and the drive voltage of a second other phase is the zero voltage. A position unit is arranged for determining the rotor position based on the voltage value.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 25, 2016
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Ivan LOVAS, Viktor BOBEK